Perhaps a plot where Tsunade discovers Naruto's natural affinity for sensing chakra early on. She decides to train him specifically in chakra sensing and control. This would make Naruto even more perceptive in battles. He could detect hidden enemies or traps more easily. And as he grows up, this skill could be combined with his other abilities like the Rasengan. Tsunade could also use this training as a way to bond with Naruto, creating a strong mentor - student relationship that is different from the one he had with Iruka or Kakashi.
One possible plot could be Tsunade teaching Naruto about the history of the Hidden Leaf Village from a very young age. She might share stories of the First Hokage, which could inspire Naruto to strive for greatness in a different way than in the original story. Another plot could involve Tsunade training Naruto in medical ninjutsu early on, which would give him a unique skill set. Maybe Naruto could use his new medical skills to heal some of the villagers who were injured during the various attacks on the village, thus earning their respect in a new way.
One possible plot could be Poseidon teaching Percy about his underwater powers in a really fun and father - son way. For example, they could have little adventures in the ocean where Poseidon shows Percy how to communicate with sea creatures. Another plot might involve Poseidon protecting Percy from the other gods who are jealous of Poseidon's special relationship with his son. Maybe he creates a hidden underwater lair for Percy to grow up safely.
One possible plot could be that the Akatsuki members, despite their villainous nature in the original Naruto story, see potential in Naruto. They start to train him in unique ways that the Leaf Village never thought of. For example, they might teach him some forbidden jutsu but also instill in him a different view of the ninja world, which causes Naruto to question the values he was brought up with in Konoha.
One plot could be Naruto creating his own unique ninja style. Since he has to raise himself, he would be more creative in combat. He might combine different basic jutsu to form something entirely new, which would make him stand out even more in the ninja world.
One interesting plot could be Naruto using his unique ninja skills to accidentally hypnotize Tsunade into believing she's a young kunoichi again. This would lead to her acting more impulsively and getting into all sorts of comical and adventurous situations in the village.
One possible plot could be Naruto accidentally discovers a hidden side of Tsunade related to ABDL. This leads to a series of comical yet heartwarming moments as Tsunade tries to keep it a secret while Naruto is just innocently curious. For example, Naruto might find some ABDL - related items in Tsunade's office and misunderstand their purpose at first.
Perhaps in the fanfiction, Naruto's godlike powers are a result of some ancient prophecy. Tsunade, being the experienced Hokage, guides him on how to control these powers. They might go on a journey to discover the origin of these powers and along the way, face many challenges together. For example, they could encounter other villages that are either jealous or afraid of Naruto's powers and try to stop them.
One common plot is a training arc where Tsunade trains Sakura further in medical ninjutsu and combat skills, with Naruto sometimes getting involved as a sparring partner or for moral support.
A common plot could be Tsunade being initially hesitant about the relationship. She might think Naruto is too young or that she is too old for him. But Naruto's charm and his ability to see past her age eventually convince her. For example, Naruto might take her on a journey to relive some of her happiest memories from her youth, which makes her see him in a new light and leads to their marriage.
Naruto would likely be more refined in his behavior. With Tsunade as a mother figure, he'd be exposed to more formalities of the village leadership. He might be less of a prankster as he'd be under Tsunade's watchful eye. Tsunade's no - nonsense attitude would rub off on him.
One plot idea could be that baby Naruto somehow gets lost in the village and Tsunade finds him. She then decides to take care of him for a while, teaching him some basic ninja skills in a very gentle and motherly way. Another could be a time - travel scenario where Tsunade meets baby Naruto from the past and has to protect him from a new, unknown threat. And a third idea is that there's a strange illness in the village that only affects babies, and Tsunade is determined to cure Naruto using all her medical knowledge and skills.